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PN Junction Diode – 1 – 7

31. The dynamic resistance r of a diode varies as :

(a) 1/I
(b) 1/I2
(c) I
(d) I2

Answer
Answer : (a)

Explanation
No answer description available for this question. Let us discuss.

32. The reverse saturation current in germanium diode is of the order of :

(a) 1 nano amps
(b) 1 micro amps
(c) 1 milli amps
(d) 1 kilo amps

Answer
Answer : (b)

Explanation
No answer description available for this question. Let us discuss.

33. The diode capacitance has ……… temperature coefficient and the figure of merit has ……… temperature coefficient.

(a) Positive, Positive
(b) Negative, Negative
(c) Positive, Negative
(d) Negative, Positive

Answer
Answer : (c)

Explanation
No answer description available for this question. Let us discuss.

34. Peak inverse voltage of the diode is found to be :

(a) Greater or equal to Vm
(b) Small or equal to Vm
(c) Equal to Vm
(d) Not equal to Vm

Answer
Answer : (a)

Explanation
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35. Consider the statements
1. Ideal diode conducts with zero resistance when forward biased.
2. Ideal diode appears as an infinite resistance when reverse biased.

(a) Only 1 is correct
(b) Only 2 is correct
(c) Both 1 & 2 are correct
(d) Either 1 or 2 is correct

Answer
Answer : (c)

Explanation
No answer description available for this question. Let us discuss.

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